From 67ee4e24010322153d04d8f684927b6332d4cd90 Mon Sep 17 00:00:00 2001 From: roland Date: Fri, 7 Sep 2018 14:15:13 +0200 Subject: [PATCH] stm32/boards/STM32L476DISC: Enable external RTC xtal to get RTC working. --- ports/stm32/boards/STM32L476DISC/mpconfigboard.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/ports/stm32/boards/STM32L476DISC/mpconfigboard.h b/ports/stm32/boards/STM32L476DISC/mpconfigboard.h index a35dee1182..2653ebb34d 100644 --- a/ports/stm32/boards/STM32L476DISC/mpconfigboard.h +++ b/ports/stm32/boards/STM32L476DISC/mpconfigboard.h @@ -36,6 +36,9 @@ extern struct _spi_bdev_t spi_bdev; #define MICROPY_HW_CLK_PLLR (RCC_PLLR_DIV2) #define MICROPY_HW_CLK_PLLQ (RCC_PLLQ_DIV2) +// The board has an external 32kHz crystal +#define MICROPY_HW_RTC_USE_LSE (1) + #define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_4 // USART config